Safety valve and signal device combined



May 13 1924 T. B. SLA-rE kSAFETY VALVE AND SIGNAL DEVICE COMBINED Filed April 28, 1923 Patented May 13, 1924. v

UNITED sTn-Tssl PATENT omer..

THOMAS BFSLATE, OF LONG ISLAND CITY, NEW YORK, ASSIGNOR T0 WALTER S. y

JOSEPHSON, OF BELLE HARBOR, LONG ISLAND, NEW YORK.

ASAFETY VALVE AND `steunt. :DEvTCE COMBINED. A

Application led" April 28, 1923. 1 Serial No. 685,223.

Tlo all whom t may concern:

Be it known that I,TH0MAs B. SLATE, a citizen of the United States, 'residing at Long Island City, in the county of Queens and State of New York, have invented a new and useful Safety Valve an'd Signal Device Combined, of which the following is a specification.

The object of my invention is to provide a novel combined safety valve and audible signal device, adapted for use on any kind of container of a vapor or gas under pressure; and lto provide the novel. combination and` arrangement of parts disclosed in the accompanying drawings, in which- Figure 1 is-an enlarged vertical sec-tion through the valve;

Fig. 2 is a similar section, partly in elevation;

Fig. 3 is a horizontal section on line 3-3 of Fig. 1;

Fig. 4. is a horizontal section on line 4.--4 of Fig. 2; and

Fig. 5 is a side elevation of the valve showing one of its applications, namely, to a carbonatortankv in which is contained carbon dioxide under'pressure.

j Like numerals designate like parts in each of the several views.

Referring to the accompanying drawings,.1 designates. the tank cover or wall provided with ports 2, the wall or cover 1 also being provided with an annular flange 4.' I provide a suitable post or` standard 3 secured tocover or wall 1 and carrying a bell 7 adjustablymountedon threaded end 15 of standard 3. Within the bell 7 is a coiled spring v6 which presses on ring or washer 5 and holds it on its seat 13, normally closing the ports 2,V as shown in Fig.. 1. The washer or rin 5 is of somewhat smaller diameter than t e annular flange '4, so as to provide an annular space 9 around the edge of the ring. Y

When t-he pressure under or within the cover or tank 1 increases beyond a predetermined point where it exceeds the counterbalancing pressure of spring 6 on washer 5, it forces the washer 5 upwards into the position shown in Fig. 2, in which position the gas or vapor passes out through ports 2, passages 14 annular edge locity to vibrate audible whistle.

8 of bell 7 with suiiicient ve theV bell and produce an The edge 8 of the bell 7 and 9 and strikes the tapered is positioned approximately in alinement and directly over the passage 9. Y

In Fig. 5 lis illustrated one application of myl invention. In this instance my inventionl is applied to the cover 1 of a carbonator tank 10 which is in communication with and supplied with carbon dioxide under pressure from a carbon dioxide-container 1l, the supply being controlled by a conventional valve 12.

The tendency of the escaping gas is to j flow out, and it has to pass under its own flow or current to escape from the bell and this sets up a vibration of the bell. By

regulating the tension of the spring 6 by,

screwin Ythe bell further down on the threaded end 15 of standard 3, the degree of carbonation maybe determined. However, if the lcharging with carbon dioxide is not such as to suit theY taste of the user at'the time the signal is given, charging mayv be continued by adjusting the valve to withstand a greater pressure within the tank. i

I do not wish it to be understood that my invention is limited to its use with such a device, as it is adapted for use lin a variety of ways.

What I claim is: 1. A safety valve and signal device combined in combination with a 'container of a gas or vapor under pressure, the tank having ports for the escape of gas and having an exterior flangel surrounding said ports, a standard rigidly secured -to the tank, a washer slidably mounted on and relative to the standard and seating over the ports and within the annular flange, said washerhaving its periphery spaced from the annular flange to provide an annular passage between, a bell secured to the standard, said bell having its annular bottom edge positioned approximately in alignment withvthe annular passage between the periphery of the washer and the inner edge of 'the' exterior annular flange, and a spring mounted within Athe belli and bearing on the top of the washer to'hold same to its seat until the pressure ot gas in ports exceeds a predetermined amount to raise the washer and release the gas and at the same time sound an audible signal.

2. A safety valve and signal device com l bined in combination with a container of gas or vapor under pressure, said Icontainer having ports for the escape of the gas or vapor, and having external annular flange encircling said ports, a standard secured to the Container and positioned concentric with the annular flange, said standard haviner a threaded outer end, a bell adjustably mounted on the threaded outer end of the standard, a Spring contained Within the bell and arranged to permit of adjustment of its tension by adjustment of the bell on the standard, a washer on which the v:spng bears, said washer normally seating over the ports in the tank, an annular space being provided bet-Ween the periphery of the Washer and the annular interior surface of the annular flange, the bottom edge of the bell being positioned directly over said annular spaces, whereby the escaping gas will impinge against the edge of the bell and vibrate same to sound an audible signal, the spring pressed washer also 'providing an adjust-able automatic reliet` valve.

THoMAs B. entre." 

